DREF02 Reference electrode Back Catalog number: 18901183 Manufacturer: DLAB Availability: In the manufacturer's stock Price (VAT incl.) 50,28 € 41,55 € - + Recommended 18901207 1408μS/cm 250mL Conductivity Solution, one bottle 20,37 € 18901212 146.6μS/cm 500mL Conductivity Solution, one bottle 38,29 € 18901194 PH9.18 250mL 9.18pH, one bottle 13,03 €